Net primary productivity refers to     the rate of energy storage as organic matter by autotrophs after respiration is deducted     the total rate of photosynthesis, or energy assimilated, by autotrophs     the amount of accumulated organic matter found in an area at a given time     the production of new tissues and offspring by heterotrophs

List three criteria for sustainable biofuel production.

In the nitrogen cycle the Assimilation process is a metabolic reaction: anabolic, catabolic, endergonic, exergonic, heterotrophic or autotrophic.

Give some example of soil pollutants.

in the soil decrease release CO₂ in primary producers primary consumers will occur increase absorb CO₂ from in the biomass will not occur will remove will not remove Nutrient export is likely to increase because most of the nutrients are stored further erosion of soil Trees the atmosphere, so removal of trees this carbon sink. Soil moisture will decline because evaporation from the clear-cut land will With the loss of the main plummet. and and structural components of the ecosystem, biodiversity will

Which of the following statement is NOT the benefit of biofuels? Lütfen birini seçin: O a. Promote the release of greenhouse gases O b. Improve rural income O c. Promote eco-friendly mechanisms O d. Reduce atmospheric pollution O e. Provide fuel security

Explain the process of energy flow in ecosystem.

Choose the correct answer

When the ratio of O2 to CO2 within their leaves C3 plants undergo a shift toward more and less decreases; photorespiration; carbon fixation increases; growth; carbon fixation O decreases; photorespiration; growth increases; carbon fixation; photorespiration O increases; photorespiration; carbon fixation

Make a diagramatic representation of carbon cycle.